Professional and amateur cooks alike will appreciate the Microplane Gourmet series' semi-circular shape and added grating surface area. The tougher anti-slip rubber end on the Rater provides more stability and protection while working. The Rater has a soft handle and anti-slip rubber end for greater stability and protection on the work surface. Rater has a solid stainless steel frame that surrounds the surgical steel blade with super sharp edges created by the patented technology of photo etching. It is made from semi surgical steel.